/**
 * Copyright (c) 2008, EffCode, www.effcode.com
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list 
 * of conditions and the following disclaimer. 
 * Redistributions in binary form must reproduce the above copyright notice, this list 
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution. 
 * Neither the name of the EffCode nor the names of its contributors may be used 
 * to endorse or promote products derived from this software without specific prior written 
 * permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.effdom.impl;

import org.effdom.Document;
import org.effdom.Element;

/**
 * @author <a href="mailto:mattias@effcode.com">Mattias Jonsson</a>
 */
public class AttrNumber extends AttrBase {

    private long longValue;

    public AttrNumber(Document document, Element parent, short id, long value) {
        super(document, parent, id);
        setValue(value);
    }

    public String value() throws IllegalStateException {
        return String.valueOf(longValue);
    }

    public int valueAsInt() throws IllegalStateException {
        if (longValue < Integer.MIN_VALUE || longValue > Integer.MAX_VALUE) {
            throw new IllegalStateException("No value is larger than long definition, use longValue()");
        }
        return (int)longValue;
    }

    public long valueAsLong() throws IllegalStateException {
        return longValue;
    }

    public void setValue(long value) {

        if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) {
            length = 1;
        } else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) {
            length = 2;
        } else if (value >= Integer.MIN_VALUE && value <= Integer.MAX_VALUE) {
            length = 4;
        } else {
            length = 8;
        }
        lenSize = 0;
        longValue = value;
    }

}
